page-cgroup: get rid of NR_PCG_FLAGS

It's not used anywhere today, so let's remove it.
Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/page_cgroup.h

@@ -6,12 +6,8 @@ enum {
 	PCG_USED = 0x01,	/* This page is charged to a memcg */
 	PCG_MEM = 0x02,		/* This page holds a memory charge */
 	PCG_MEMSW = 0x04,	/* This page holds a memory+swap charge */
-	__NR_PCG_FLAGS,
 };
 
-#ifndef __GENERATING_BOUNDS_H
-#include <generated/bounds.h>
-
 struct pglist_data;
 
 #ifdef CONFIG_MEMCG
@@ -107,6 +103,4 @@ static inline void swap_cgroup_swapoff(int type)
 
 #endif /* CONFIG_MEMCG_SWAP */
 
-#endif /* !__GENERATING_BOUNDS_H */
-
 #endif /* __LINUX_PAGE_CGROUP_H */

kernel/bounds.c

@@ -9,7 +9,6 @@
 #include <linux/page-flags.h>
 #include <linux/mmzone.h>
 #include <linux/kbuild.h>
-#include <linux/page_cgroup.h>
 #include <linux/log2.h>
 #include <linux/spinlock_types.h>
 
@@ -18,7 +17,6 @@ void foo(void)
 	/* The enum constants to put into include/generated/bounds.h */
 	DEFINE(NR_PAGEFLAGS, __NR_PAGEFLAGS);
 	DEFINE(MAX_NR_ZONES, __MAX_NR_ZONES);
-	DEFINE(NR_PCG_FLAGS, __NR_PCG_FLAGS);
 #ifdef CONFIG_SMP
 	DEFINE(NR_CPUS_BITS, ilog2(CONFIG_NR_CPUS));
 #endif